Jada Pinkett Smith and Will Smith attend the "Free Angela and All Political Prisoners" premiere in New York on April 3. / Johnny Nunez, WireImage

by USA TODAY

by USA TODAY

Biebs, you just call out his name, "and I'll come, whatever happens," the paternalistic powerhouse actor told Extra at the Free Angela and All Political Prisoners premiere on Wednesday in New York.

"When somebody is 19 years old, they are going to do what they are going to do just like we did. For me, the most important thing was for him to know anytime he can call," Smith told correspondent Angie Martinez about Bieber.

"We think it is hugely important to support young artists," said Smith, whose son Jaden is friends with the Biebs. "There is a war against that kind of artistry, that kind of creation."